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Study on Fly Ash Geopolymer Concrete to Reduce Global Warming Gases
The climate change due to global warming, one of the greatest environmental issues, has become a major concern during the last decade. The global warming is caused by the emission of greenhouse gases such as CO2 to the atmosphere by human activities. In recent years, attempts to increase the utilisation of fly ash to partially replace the use of Portland cement in concrete are gathering momentum. Geopolymer concrete is a new material that does not need the presence of Portland cement as a binder. Instead, activating the source materials such as fly ash that are rich in silicon (Si) and aluminium (Al) using high alkaline liquids produces the binder required to manufacture the concrete. Hence, concrete with no cement can be achieved. In this study M20 grade geopolymer concrete was designed and two trial mixes have been compared with the control specimen. This paper presents information on fly ash-based geopolymer concrete, material and the mixture proportions, the manufacturing process, and the influence of various parameters on the properties of fresh and hardened concrete.
Keywords
Fly Ash, Geopolymer Concrete, Superplasticizer, Global Warming.
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